3 Connection Sizes: Including 3 different adapters, compatible with major brand faucet hose connectors, not limited to fit Moen, Delta, Glacier Bay, AquaSource, Kohler, Price Pfister and Oakbrook. Adapter A: 5/8-16 UN, Adapter B: 5/8-18 UNF, Adapter C: G 1/2" Standard Universal, or 13/16. If your faucet is Pfister or Galcier Bay then the SMART SPRAY will fit directly onto the hose without an adapter.Dual Spray Options: This kitchen sink faucet pull down spray head provides powerful wide spray and aerated stream mode (upgraded NEOPERL Aerator), from flushing to filling, meeting your different needs. You can switch functions by pressing the button.Removable Flow Restrictor: Upgraded new 1.8 GPM flow restrictor to save water while providing adequate flow and high pressure spray, and it is easier to be removed for different needs.High Quality Replacement Part: The ergonomic design combined with the bigger classic shape is ideal for comfortable use. The durable ABS plastic construction with premium brushed Nickel finish, effectively resist corrosion or tarnishing.Easy Installation: No tool needed, just screw it on, easy to install. Awelife guarantees 100% warranty. Any help, please Email us. 1. Comes with 3 different connection adapters make this pull down kitchen faucet spray head compatible with most OEM brands, including Moen, Delta, Glacier Bay, AquaSource, Kohler, Price Pfister and Oabrook, etc. (Not including Grohe and Hansgrohe.) So it will meet your all requirements. 2. Provides 2 Spray options for you to choice, wide spray and aerated stream, you just need to press the toggle button to switch from stream to spray, it will give you a comfortable operation experience. 3. Upgraded the Neoperl Aerator and new flow restrictor, compared with our old version and the same product on the market, greatly improved aerated stream, more bubbles and less splash. 4. Upgraded new 1.8 GPM flow restrictor, which saves water while providing adequate flow and high pressure spray, and it is easier to be removed for different needs. 5. The ergonomic design, combined with the bigger classic shape, is ideal for pulling down / out use. 6. Easy to install, no tool needed, just screw it on. Awelife guarantees 100% warranty. Any help, please Email us. 1. Shut water off to faucet. 2. Unscrew old Pull Down Head from your facuet. 3. Determine which adapter properly fits your hose. Note:There are specific hoses that fit directly into the head without an adapter. 4. Screw adapter into hose(hand tighten). If your faucet is Pfister or Galcier Bay then the SMART SPRAY will fit directly onto the hose without an adapter. 5. Screw SMART SPRAY into the adapter or hose(hand tighten). 6. Turn water to faucet back on. 7. Check for work.